Exploring Google OAuth and Scopes
If you're interested in integrating Google identity federation into your application, particularly through OAuth 2.0, there are various options available to enhance the authentication process for your users.
Google's API documentation refers to permissions as scopes. You can access a comprehensive list of scopes for all Google APIs. Configuring scopes may involve additional steps based on the specific Google apps and information required by your app. The default Google API scopes for a new project typically include email, profile, and openid. If you need assistance with managing and modifying scopes in the Google API console, check out this informative video tutorial.
1. Implementing Google Sign-In Button with Scopes
A straightforward approach is to follow the instructions provided in this guide from Google on setting up Google Auth directly on the frontend. Start by creating a project in the Google API Console and reviewing your project scopes under the Credentials and OAuth Consent Screen tabs. Then, incorporate a script tag in your frontend code to establish communication with the Google API for authentication purposes. Additionally, include a meta tag containing the client key obtained from the Google API Console. By following these steps and configuring a sign-in button as specified in the guide, users should be able to sign in seamlessly, allowing you to access limited user data for validation within your app.
2. Leveraging Firebase with Scopes
For a more advanced solution, consider utilizing Firebase authentication, which not only provides extensive user data but also facilitates database management for storing and retrieving user-related information and sessions. Firebase is often referred to as a backend-as-a-service (BaaS) due to its time-saving development features.
To achieve the same level of scope granularity as outlined in the standard OAuth setup, you may need to combine both Firebase and OAuth approaches as detailed in this article from Fireship.io.